FR686867A - Dispositif détecteur de sons - Google Patents

Dispositif détecteur de sons

Info

Publication number
FR686867A
FR686867A FR686867DA FR686867A FR 686867 A FR686867 A FR 686867A FR 686867D A FR686867D A FR 686867DA FR 686867 A FR686867 A FR 686867A
Authority
FR
France
Prior art keywords
detector device
sound detector
sound
detector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
English (en)
Inventor
Georges Schauly
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of FR686867A publication Critical patent/FR686867A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/72—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using ultrasonic, sonic or infrasonic waves

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
FR686867D 1929-03-09 1929-03-09 Dispositif détecteur de sons Expired FR686867A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR686867T 1929-03-09

Publications (1)

Publication Number Publication Date
FR686867A true FR686867A (fr) 1930-07-31

Family

ID=9025788

Family Applications (1)

Application Number Title Priority Date Filing Date
FR686867D Expired FR686867A (fr) 1929-03-09 1929-03-09 Dispositif détecteur de sons

Country Status (1)

Country Link
FR (1) FR686867A (fr)

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